摘要
为解决农田无线传感网络(WSN)中基于太阳能供电的Zigbee采集节点在连续阴雨条件下,因蓄电池供电不足造成无法长时间稳定工作的问题,研究了太阳能蓄电池剩余电量(SOC)与数据采集频率的关系。结果表明:相同工作时间内,采集频率越快,SOC越小,且二者成反比例关系。基于上述研究结果,提出了一种基于太阳能蓄电池的采集频率调控方法,即当蓄电池电量一定时,通过调节采集频率来维持节点的存活时间。试验证明经调节采集频率后,节点能在预期的时间内稳定工作。这可为WSN在农田环境监测中的应用提供技术支持,对农业物联网的发展具有重要意义。
In order to solve the problem of the inability of solar energy powered Zigbee acquisition node in farmland WSN ( wireless sensor network) to work long stably resulting from the insufficient battery power supply in continuous rainy days,the relationship between SOC ( residual battery capacity) and data acquisition frequency is studied. The experimental results show that in the same working hours,the greater the acquisition frequency is,the smaller the SOC is,and the two is in an inversely proportional relationship. Based on the above research results,this paper proposes a acquisition frequency control strategy based on solar energy storage battery. When the remaining battery power is constant,the node's survival time is maintained by adjusting the acquisition frequency. After adjusting the acquisition frequency,the node can work stably within the expected time,which provides technical support for the application of WSN in farmland environmental monitoring and is of great significance to the development of the agricultural Internet of things.
作者
刘寒静
吴晖霞
李秀杰
张恒维
许荣泽
于合龙
LIU Hanjing;WU Huixia;LI Xiujie;ZHANG Hengwei;XU Rongze;YU Helong(College of Information Technology,Jilin Agricultural University,Changchun 130118,China;Northeast Electric Power Design Institute Co. Ltd.,Changchun 130021,China;Precision Agriculture and Big Data Engineering Research Center of Jilin Province,Changchun 130118,China)
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2018年第6期754-760,共7页
Journal of Jilin Agricultural University
基金
国家自然科学基金项目(11372155)
吉林省科技发展计划项目(20130412010xh)
吉林省省级经济结构调整引导资金专项(2014Y107)
长春市科技计划项目科技创新"双十工程"重大科技攻关项目(18SS018)
关键词
太阳能
农田
无线传感网络
采集频率
solar energy
farmland
wireless sensor network
acquisition frequency
作者简介
刘寒静,女,在读硕士,研究方向: 物联网与云计算;通信作者:于合龙.
